Two questions (6)

I've been considering changing the secure tripcode algorithm from using MD5 to using RC4. This would mean:

Secure tripcodes would work on all installations. Currently they're limited to those hosts that have the MD5 module installed, which means most, but not all. I have my own RC4 code that runs everywhere.

Existing secure tripcodes would all change. But they're not widely used and they vary from site to site anyway.

Is this a good or bad idea?

100webspace just raised the bandwidth limit from 1GB to 3GB. What do I do with all this extra bandwidth? Currently the site is using somewhere around 700MB per month.